CN220379456U - Blast furnace top pressure equalizing and diffusing gas recovery system - Google Patents
Blast furnace top pressure equalizing and diffusing gas recovery system Download PDFInfo
- Publication number
- CN220379456U CN220379456U CN202321998812.0U CN202321998812U CN220379456U CN 220379456 U CN220379456 U CN 220379456U CN 202321998812 U CN202321998812 U CN 202321998812U CN 220379456 U CN220379456 U CN 220379456U
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- gas
- blast furnace
- gas recovery
- pipeline
- pressure
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- 238000011084 recovery Methods 0.000 title claims abstract description 36
- 239000012535 impurity Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims 5
- 238000000746 purification Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
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- Blast Furnaces (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model belongs to the technical field of gas purification and recovery, and particularly relates to a blast furnace top pressure equalizing and diffusing gas recovery system, which comprises a blast furnace body, wherein a charging bucket is arranged above the blast furnace body, and a receiving hopper is arranged above the charging bucket; the high-pressure gas pipe network is further arranged, the charging bucket is connected with a gas recovery box body through a first pipeline, the gas recovery box body is connected with an inlet of the ejector through a second pipeline, a working inlet of the ejector is connected with the high-pressure gas pipe network through a third pipeline, and an outlet of the ejector is connected with a low-pressure gas pipe network through a fourth pipeline. The system ejects the gas to a gas pipe network through high-pressure gas ejection when the pressure of the top charging bucket is released, the pressure of the charging bucket gas can be released to 2KPa, the sealing charging can be directly opened, the gas is not required to be diffused, and the purpose of fully recovering the gas is achieved.
Description
Technical Field
The utility model belongs to the technical field of gas purification and recovery, and particularly relates to a blast furnace top pressure equalizing and diffusing gas recovery system.
Background
In the blast furnace ironmaking process, when a charging tank at the top of the blast furnace is charged, the gas in the charging tank needs to be decompressed, and the common mode is that the gas in the charging tank is diffused to a collecting hopper through a pressure equalizing diffusion valve, so that the gas is discharged, and the atmospheric pollution is caused. And the recovery is often incomplete when a gas recovery system is installed, when the pressure of the gas in the charging bucket is reduced by 20KPa, the pressure is slowly reduced, the pressure equalizing and diffusing valve is required to be opened for diffusing and evacuating, the gas recovery rate is approximately 80%, and the full recovery cannot be performed.
Disclosure of Invention
The utility model discloses a blast furnace top pressure equalizing and diffusing gas recovery system, which is used for injecting gas to a gas pipe network through high-pressure gas injection when a furnace top charging bucket is depressurized, wherein the charging bucket gas pressure can be depressurized to 2KPa, a sealing material can be directly opened, and the gas is not required to be diffused, so that the aim of fully recovering the gas is fulfilled.
The pressure equalizing and diffusing gas recovering system for the blast furnace top comprises a blast furnace body, wherein a charging bucket is arranged above the blast furnace body, and a receiving hopper is arranged above the charging bucket;
the high-pressure gas pipe network is further arranged, the charging bucket is connected with a gas recovery box body through a first pipeline, the gas recovery box body is connected with an inlet of the ejector through a second pipeline, a working inlet of the ejector is connected with the high-pressure gas pipe network through a third pipeline, and an outlet of the ejector is connected with a low-pressure gas pipe network through a fourth pipeline.
Preferably, a gas injection valve is mounted on the third pipeline.
Preferably, the fourth pipeline is provided with a flow meter, a blind plate valve and a butterfly valve.
Preferably, a filter screen is installed in the gas recovery tank body, and the filter screen is used for filtering impurities.
Preferably, the outlet of the first pipeline is connected with the upper part of the gas recovery box body, and the inlet of the second pipeline is connected with the side wall of the gas recovery box body.
Preferably, an impurity cleaning door is hinged below the gas recovery box body.
Compared with the prior art, the utility model has the beneficial effects that:
the system ejects the gas to a gas pipe network through high-pressure gas ejection when the pressure of the top charging bucket is released, the pressure of the charging bucket gas can be released to 2KPa, the sealing charging can be directly opened, the gas is not required to be diffused, and the purpose of fully recovering the gas is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
In order to better understand the embodiments of the present application, the following description will clearly and completely describe the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
As shown in fig. 1, the blast furnace top equalizing and diffusing gas recycling system comprises a blast furnace body 1, wherein a charging bucket 2 is arranged above the blast furnace body 1, and a receiving hopper 3 is arranged above the charging bucket 2;
the high-pressure gas pipe network device is characterized by further comprising a high-pressure gas pipe network 4, wherein the charging bucket 2 is connected with a gas recovery box 6 through a first pipeline 5, the gas recovery box 6 is connected with an inlet of an ejector 8 through a second pipeline 7, a working inlet of the ejector 8 is connected with the high-pressure gas pipe network 4 through a third pipeline 9, and an outlet of the ejector 8 is connected with a low-pressure gas pipe network 11 through a fourth pipeline 10.
The third pipeline 9 is provided with a gas injection valve 12.
The fourth pipeline 10 is provided with a flow meter 13, a blind plate valve 14 and a butterfly valve 15.
The inside of the gas recovery box body 6 is provided with a filter screen which is used for filtering impurities.
The outlet of the first pipeline 5 is connected with the upper part of the gas recovery box body 6, and the inlet of the second pipeline 7 is connected with the side wall of the gas recovery box body 6.
An impurity cleaning door is hinged below the gas recovery box body 6.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The pressure equalizing and diffusing gas recovering system for the blast furnace top comprises a blast furnace body, wherein a charging bucket is arranged above the blast furnace body, and a receiving hopper is arranged above the charging bucket;
the high-pressure gas pipe network is characterized in that the charging bucket is connected with a gas recovery box body through a first pipeline, the gas recovery box body is connected with an inlet of the ejector through a second pipeline, a working inlet of the ejector is connected with the high-pressure gas pipe network through a third pipeline, and an outlet of the ejector is connected with the low-pressure gas pipe network through a fourth pipeline.
2. The blast furnace top equalizing and bleeding gas recovery system according to claim 1, wherein the third pipeline is provided with a gas injection valve.
3. The blast furnace top equalizing and bleeding gas recovery system according to claim 1, wherein the fourth pipeline is provided with a flow meter, a blind plate valve and a butterfly valve.
4. The blast furnace top equalizing and bleeding gas recovery system according to claim 1, wherein a filter screen is installed in the gas recovery tank, and the filter screen is used for filtering impurities.
5. The blast furnace top equalizing and bleeding gas recovery system according to claim 4, wherein the outlet of the first pipe is connected to the upper part of the gas recovery tank, and the inlet of the second pipe is connected to the side wall of the gas recovery tank.
6. The blast furnace top equalizing and bleeding gas recovery system according to claim 5, wherein the impurity cleaning door is hinged below the gas recovery box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321998812.0U CN220379456U (en) | 2023-07-27 | 2023-07-27 | Blast furnace top pressure equalizing and diffusing gas recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321998812.0U CN220379456U (en) | 2023-07-27 | 2023-07-27 | Blast furnace top pressure equalizing and diffusing gas recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220379456U true CN220379456U (en) | 2024-01-23 |
Family
ID=89570098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321998812.0U Active CN220379456U (en) | 2023-07-27 | 2023-07-27 | Blast furnace top pressure equalizing and diffusing gas recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220379456U (en) |
-
2023
- 2023-07-27 CN CN202321998812.0U patent/CN220379456U/en active Active
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